Addressing Dynamics at Catalytic Heterogeneous Interfaces with DFT-MD: Anomalous Temperature Distributions from Commonly Used Thermostats
Ville Korpelin, Toni Kiljunen, Marko Melander, A. Miguel, Henrik H. Kristoffersen, Nisha Mammen, V. Apaja, Karoliina Honkala
Abstract
1998, 726-740) and termed the flying ice cube effect. We provide tantamount evidence that interfacial systems are susceptible to substantial flying ice cube effects and demonstrate that the traditional Nosé-Hoover and Berendsen thermostats should be applied with care when simulating, for example, catalytic properties or structures of solvated interfaces and supported clusters. We conclude that the flying ice cube effect in these systems can be conveniently avoided using Langevin dynamics.
Topics & Concepts
ThermostatDynamics (music)Molecular dynamicsMaterials scienceChemical physicsStatistical physicsThermodynamicsPhysicsChemistryComputational chemistryAcousticsAdvanced Thermodynamics and Statistical MechanicsPhase Equilibria and ThermodynamicsTheoretical and Computational Physics